SpecLibCreator: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/SpecLibCreator - from package: topp

You may install the required package with command apt-get install {package}
Error in other languages:
SpecLibCreator: bevel nie gevind nie
SpecLibCreator: comandă negăsită
SpecLibCreator: comando não encontrado
SpecLibCreator: commande introuvable
SpecLibCreator: command not found
SpecLibCreator: käsku ei ole
SpecLibCreator: không tìm thấy lệnh
SpecLibCreator: komanda nerasta
SpecLibCreator: Kommando nicht gefunden.
SpecLibCreator: kommandot finns inte
SpecLibCreator: komut yok
SpecLibCreator: nie znaleziono polecenia
SpecLibCreator: níor aimsíodh an t-ordú
SpecLibCreator: no se encontró la orden
SpecLibCreator: no s'ha trobat l'ordre
SpecLibCreator: opdracht niet gevonden
SpecLibCreator: parancs nem található
SpecLibCreator: perintah tidak ditemukan
SpecLibCreator: príkaz nenájdený
SpecLibCreator: příkaz nenalezen
SpecLibCreator: команда не найдена
SpecLibCreator: командата не е открита
SpecLibCreator: 命令找不到
SpecLibCreator: コマンドが見つかりません